Accommodation-only specialist Stuba has removed hotels in Russia and Belarus from its inventory as it announced it is ceasing operations in the two countries.
The hotels are no longer for sale and all forward bookings in Russia and Belarus have been cancelled.
Affected agents have been contacted.
More: Stuba reports best sales day in its 30-year history
Chief commercial officer Matt Stuart said: “Like the rest of the world, we have watched in horror at the human suffering the Ukrainian people are being subjected to daily because of the invasion by Russia.
“There is not much we can do to influence these global size events, but we can stand by our principles and values and promote peace and security for all humans.
“Collectively if enough people and companies make a stand against aggressor nations, we can start to make a difference.”
He added: “I know I speak for us all when I say we are praying for the conflict and violence to end soon, and the Ukrainian people can live in peace and safety in their own country once again.”
Stuba has contributed to the Disasters Emergency Committee Ukraine Humanitarian Appeal that directly helps provide water, food, shelter and healthcare to Ukrainian refugees and displaced families.